Flint River Reservoir is a productive, nutrient-rich eutrophic lake in Dougherty County, Georgia. Water quality is graded B based on 1 sampling years through 2025. Compared to the 1 other monitored lakes in Dougherty County, Flint River Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Georgia DNR, last sampled 2025-10-20. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 4.3 ft. Chlorophyll-a: 4.9 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.3 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.9 µg/L | B |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Flint River Reservoir
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Fishing Flint River Reservoir
Location
County Ranking
Ranked #2 of 2 lakes in Dougherty County
Nearby Lakes in Dougherty County
Explore Flint River Reservoir across LakeGrade
More Georgia Lake Rankings
Other Grade B Lakes in Georgia
Eutrophic Lakes in Georgia
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-20
Monitoring stations: 2